_{Conditions that might contribute to IH
What can cause IIH?}

Obstruction to venous drainage
Cerebral venous sinus thrombosis
Bilateral radical neck dissection with jugular vein ligation
Superior vena cava syndrome
Increased right heart pressure
Cerebral arterial-venous sinus shunts
Medical conditions
Overweight, recent weight gain
Orthostatic edema
Antiphospholipid antibody syndrome
Chronic obstructive pulmonary disease
HIV infection
Iron deficiency anemia
Polycystic ovary syndrome
Sleep apnea
Systemic lupus erythematosis
Turner syndrome
Addison's disease
Hypothyroidism

Medications:

Vitamin A and related compounds: Acutane, Vitamin supplements,
Tetracycline and related compounds: Minocycline,
liver, All-trans-retinoic acid (for acute promyelocytic leukemia)
Doxycycline
Sulfa antibiotics,
Hormones: Corticosteroids (particularly withdrawal), Growth
hormone, Norplant, Leuprorelin acetate (LH-RH analogue)

Other medications:

Amiodarone. Chlordecone (kepone)
Cyclosporine, Lithium, Nalidixic acid